[clang] [llvm] [RISCV] Update Zvzip support to v0.3 (PR #210603)

[Pengcheng Wang via cfe-commits]

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@@ -379,7 +379,7 @@ The primary goal of experimental support is to assist in the process of ratifica
 
 `experimental-zvzip`
 
-: LLVM implements the [0.1 draft specification](https://github.com/ved-rivos/riscv-isa-manual/blob/zvzip/src/zvzip.adoc).
+: LLVM implements the [0.3 draft specification](https://github.com/ptomsich/riscv-isa-manual/blob/42aef87d5b2cd6d5e623e18cb51cc6c2ee9f70e9/src/unpriv/zvzip.adoc).
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wangpc-pp wrote:

Link to the riscv-isa-manual PR?

https://github.com/llvm/llvm-project/pull/210603